3112212231 has 12 divisors (see below), whose sum is σ = 4516725720. Its totient is φ = 2064973680.

The previous prime is 3112212223. The next prime is 3112212241. The reversal of 3112212231 is 1322122113.

It is not a de Polignac number, because 3112212231 - 2³ = 3112212223 is a prime.

It is a super-2 number, since 2×3112212231² = 19371729941571994722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112212241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 817536 + ... + 821333.

It is an arithmetic number, because the mean of its divisors is an integer number (376393810).

Almost surely, 2^3112212231 is an apocalyptic number.

3112212231 is a deficient number, since it is larger than the sum of its proper divisors (1404513489).

3112212231 is a wasteful number, since it uses less digits than its factorization.

3112212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639086 (or 1639083 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3112212231 is about 55787.2049039921. The cubic root of 3112212231 is about 1460.0119206821.

Adding to 3112212231 its reverse (1322122113), we get a palindrome (4434334344).

The spelling of 3112212231 in words is "three billion, one hundred twelve million, two hundred twelve thousand, two hundred thirty-one".